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发明名称
DRAWING BOARD T-SQUARES
摘要
申请公布号
ZA7103960(B)
申请公布日期
1972.11.29
申请号
ZA19710003960
申请日期
1971.06.17
申请人
LATEGAN C
发明人
LATEGAN C
分类号
B43L
主分类号
B43L
代理机构
代理人
主权项
地址
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